ISO 11731:2017 specifies culture methods for the isolation of Legionella and estimation of their numbers in water samples. These methods are applicable to all kinds of water samples including potable, industrial, waste and natural waters.

ISO 11731:2017(E) Introduction After the first recognized outbreak of Legionnaires’ disease in 1976, the isolated bacterium was named Legionella pneumophila. Legionellae are widely found in natural and artificial aquatic environments, soils, composts and can cause legionellosis. Legionellae can grow intracellularly in protozoa like

This second edition of ISO 11731 cancels and replaces ISO 11731:1998 and ISO 11731-2:2004, which have been technically revised. Introduction After the first recognized outbreak of Legionnaires' disease in 1976, the isolated bacterium was named Legionella pneumophila .

Jun 7, 2017 · This document (EN ISO 11731:2017) has been prepared by Technical Committee ISO/TC 147 "Water quality" in collaboration with Technical Committee CEN/TC 230 “Water analysis” the secretariat of which is held by DIN.

INTERNATIONAL STANDARD © ISO ISO 11731:1998(E) 1 Water quality — Detection and enumeration of Legionella 1 Scope This International Standard describes a culture method for the isolation of Legionella organisms and estimation of their numbers in environmental samples.

ISO 11731 consists of the following parts, under the general title Water quality — Detection and enumeration of Legionella: Part 2: Direct membrane filtration method for waters with low bacterial counts

May 1, 2017 · This document specifies culture methods for the isolation of Legionella and estimation of their numbers in water samples. These methods are applicable to all kinds of water samples including potable, industrial, waste and natural waters. These methods can be used for water related matrices, e.g. biofilms, sediments, etc.

ISO 11731:2017 specifies culture methods for the isolation of Legionella and estimation of their numbers in water samples. These methods are applicable to all kinds of water samples including potable, industrial, waste and natural waters.

May 12, 2017 · ISO 11731:2017 specifies culture methods for the isolation of Legionella and estimation of their numbers in water samples. These methods are applicable to all kinds of water samples including potable, industrial, waste and natural waters.